DrainLift WS 40-50 | Wilo
Your advantages
Wilo-DrainLift WS 40/50

Your advantages

  • Pressure-tight pump chamber for subterranean and aboveground installation
  • Flexible due to free selection of inlets
  • Large tank volume
  • Surface coupling made of corrosion-resistant PUR
Series description


Pump chamber made of plastic as concealed pumping station or floor-mounted lifting unit


Pumping of sewage containing faeces or pre-cleaned sewage that cannot be returned to the sewer system using natural falls, and for the draining of objects that are below the backflow level.



Wilo-DrainLift WS 40E/x


Synthetic pumping station


Pressure outlet of the system


E = single-pump system, D = double-pump system


Selected pump type


  • Pump chamber: PE
  • Pipework: 1.4404
  • Surface coupling: PUR
  • Non-return ball valve: Cast iron
  • Gate valve: bronze


Installation-ready plastic shaft with complete pipework as single or double-pump system. Optimised chamber geometry for high inherent stability and anti-buoyancy for ground water. Surface coupling for quick and simple pump installation, non-return ball valve installed directly on the discharge port of the pump. Pump chamber incl. chain and chamber cover that can be walked on.

The pump chamber can be installed in buildings as a lifting unit, as well as outside buildings like a traditional pump chamber in the ground.

Technical data:

  • Pump chamber height: 1000 mm
  • Pump chamber height with extension: 1300 mm
  • Inlet connection: DN 100/DN 150
  • Ventilation: DN 70

Delivery state

  • Tank (for single or twin-head pump system)
  • Built-in stainless steel pipework
  • Gate valve in red bronze
  • Surface coupling made of corrosion-free plastic (PUR) with built-in non-return valve
  • Cover with seal (can be walked on, supporting a weight up to 200 kg)
  • Hole saw Ø 124 mm, inlet seal DN 100 (for pipe Ø 110 mm)
  • 1 PVC hose section Ø 50 mm with clamps for connection of a diaphragm hand pump
  • Fixation material for floor fixation
  • Installation and operating instructions

Notice! Pump is not included in the scope of delivery!


Installation and operating instructions

Wilo-DrainLift WS 40/50

Article Number 6087339
Edition 05
Page format 209.9 x 297.0 mm
Number of pages 124
PDF (5 MB)

Certification booklet

Wilo-Drainlift WS 40/50#Wilo-DrainLift WS 40/50 Basic

Article Number 6069562
Edition 2021-07
Page format 209.9 x 297.0 mm
Number of pages 72
PDF (4 MB)

Certificate REACH (Documents)

REACH regulation

Edition 2021-10
Page format 209.9 x 297.0 mm
Number of pages 2
PDF (162 KB)
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